Portable elevator.



PATENTED JULY 3, 1906.

J. E. CAMP. PORTABLE ELEVATOR. APPLIOATION FILED MAR.3, 1905.

No. 825,109. PATENTED JULY 3, 1906.

' J. E. CAMP.

PORTABLE ELEVATOR.

APPLICATION FILED MAE. 3, 1905.

2 SHEETS-SHEET 2.

I L \IUIIIIIH B JOSEPH .V'CAMP, IOFWKASHINGTON, ILLINOIS.

\ PORTABLE 'sLEyAToB. I

No. 825,109. Y

- Specification of Letters Patent.

Patented July 3, 1906.

- To all whom it may concern} Be it known that I, JOsEPH E. CAMP, a citizen of the United States, I'eSldilE at Washington, the county of Tazewe and State of Illinois, have invented certain new and useful Improvements in Portable Elevators;-

and I do ereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to use the same.

in a portable elevator This invention has-reference to. ortable elevators of that class employed for andling grain.

' tion is to provide an elevator and its short conveyer or drag with .a single elevatingchain.

A further object is to rovide a mechanism lFy which the driving power is ap lied directly at the top of the elevator or ead.

r Another object is to provide a conveyer or drag for an elevator so arran ed that the latter may be raised or lowere while the.drag remains in a horizontal position.

Another object is to so arrange an elevator 5 and drag that the former can be partially folded backupon itself and the latter raised out ofthe way for transportation purposes.

In addition to the above my invention relates to certain new and novel details ofconstruction, as will be pointed out in the following -specification and embodied in the ap- 5 pended claims, aided by. the drawings, in

whichr Figure 1 is'a side elevation of my complete portable elevator and drag. Fig. -2 is a-top view of the same. Fig. 3 is a side elevation of a portion of the elevator and drag, showing parts in section. Fig. 4 is a erspective view of a chain ti htening an loosening means. Fig. 5 is a fetail of a portion of Fig.

4. Fig. 6 1s a perspective v1ew of a drag member, showing its position between two chains. Fig. 7 is an end view of the elevator with its drag removed. Fi 8 is a p ers ective view of one-half of a 51m connec mm. Fig. 9 is a similar view of the shaft connection. Fig. 10 is a perspective view of a covered sprocket-wheel beneath which one of the elevatin -ch ains runs. Fig. 11 is a cross-sectional view of a shaft and bottom of the dra showing a plate carried 5 on the former an resting upon the latter.

A indicates a triangular carrying-frame which it appertains tomake and members G, so that it tom ofthe elevator is The primary object of my present inven-.

I which run the conveyer, (shown at M.)

vbeveled gear-wheel N, with which e the boxings Q. At the lower end of the elecarried in the boxings U, as shown.

other half of the Applioatlonflled Karol 18, 1906.1 sol-111110448 5 mountedu on wheels B- at front and rear, "as shown t e front ones bein arran ed so as to turn by means ofa fift -whee which, however, is not shown, a tongueC being prop0 v1dedfor that purpose. At the'forward end j of'the frame'Als pivotally carried, by means of bracketsD D, one end of the elevator (re resented at E.) The opposite end of the e evatorhas the usual head F, which is se arate'65 from the main elevator portion, bein hinged to the latter at the top by means of the hinge j can be folded back, as shown inbroken lines in Fig; 1. The botshown at H in the sev- '70 eral figures, the upper end of which terminates within the head F adjacent to a shaft J,

twosprocket-wheels K, over chains LL of the elevator and.

The said shaftJcaroutside the elevator-head, a ages a slmllar wheel 0, earned on a shaft ournaled on the side of .the elevator by means of which carries r1 es at one end,

vator, at t e pivot- 'oint thereof, is a beveled gear R, and with t is a wheel S meshes, the shaft T on which it isicarried bein in line with the shaft 1. described. Said s aft T is The adj acent ends of the two shafts P and T are provided-with couplings V and W, the former being secured to the shaft P and the latter to shaft T. These members are constructed so that one shall seat within the other to form a tight connection capable of se aration at will. In Figs. 8 and 9-these are 0 early illustrated, the member V havin a series of notches, while the member is provided withprojections to seat therein. Said members are adapted to connect with each other at the place of separation of the elevator and its .head, as shown, and it will be seen that when the head is raised on its hin es the members V and Wwill se arate readily, but will come together when the head isretumed to its operative position.

Erected upon the carrying-frameA is a der-- rick 2 in the form of'an A, adapted to raise and lower, this being supported in its raised position by means of two arms 3, whose lower ends hook into the members 34cm the said frame A. Carried on the derrick 2 is a shaft 4 and its Windlass 5, a crank Son. the shaft servin' to revolve the Windlass to raise or lower t e elevator, a cable 7 on the said windlass passing up through a pulley 8, hung from the derrick, and thence down to the elevator at the eye 9, where by means of a hook 10 the cable supports said elevator. ratchetwheel 11 and pawl 12 serve to sustain the elevator in anyposition placed, as Wlll be understood. The conveyer or ag M, before mentioned, is pivotally carried at its inner end on the elevator, there being arms 19, secured thereto, as shown at 14, the opposite ends of the arms being pivoted tothe e evator 111 line with. the shaft of the gear R, before described. So mounted the conveger may be raised or lowered at will. At t e opposite or outer end of the conveyor is a pivoted yoke or bail 15 for supporting sa'd conveyor when in its horizontal position. The bottom of the .latter is shown at 16, and at its extreme outer end is a shaft 17, carrying sprocket-wheels 18, corresponding with the sprockets K at the head of the elevator. Insidethe latter, near its lower end, are two sprocket-wheels 19 in line with the sprockets K and 18 and whose lower peri heries are slightly above the bottom H. t will now be seen that, as shown in Fi 3, the chains L L are designed to travers'e t e entire length of the elevator and conveyer, and it will be further seen that without some means, such as the sprockets 19, the chains L L would seek a straight line from the wheels 18 to the wheels K. The said wheels 19 therefore hold the chains down near the bottom, so that the drag members 20, one of which is shown in Fig 6, will travel close to said bottom for properly elevating the grain. These said wheels 19 are suitably journaled close to the inside surfaces of the elevator sides, and each is covered, as shown in Figs. 3 and 10, by a sheet-metal housing 21,

' letting the botom edges of the wheels project,

- can run,

.to'the shaft however,so-that the chains can engage therewith. The drag members 20 are so formed that the chains to .which they are secured can pass beneath the wheels 19, said members also passing easily between the housings 21. As a matter of fact the wheels 19 and their housings 21 do not occupy as much room as. shown in the drawings, so that the capacity of the elevator is not reduced to any great extent. Ipreferably place beneath the elevator a pair of wheels 22,beneath which the chains as shown. In use power is applied of the gear R from any desired source, from whence it is transmitted,through the gear Sand shafts T and P and gear 0, to the sprockets K K by means of the-gear N. The real power is therefore ap lied to L the head of the elevator, the chains eing drawn up with the load of grain. The shaft 17 of'thie conveyer is carried at each end in a shiftable block 23, only one of which is shown, Fig. 4, said blocks being carried inframes 24, secured to the sides of the conveyer in suitable manner. Each frame has a projection 25, on which are lugs 26, throughwhichpa'sses a plunger 27, sur rounded by a spiral spring 28, said spring ex- .veyer the. shaft wil tighten the chains.

and rests upon erting pressure between one of the lugs 26 and a fixed collar 29 on the plunger. To one end of the plunger is pivoted an arm 30, and an arm 31isalso ooselysecuredto theblock23,and the free ends of the arms 30 and 31 are connected to form a toggle between the plunger 27 and the block 23. It will be observed that when the toggle is pulled outward the block 23 will I be drawn toward the plunger, the latter being limited in its movement, ue to-the fixed collar 29 behind the lug 26,'and it must be understood that alike movement of both the togglesi. 6., one at each side of the conveyer-will operate to shift the shaft 17 in the direction mentioned, with the result that the chains L L are slackened. Now if the toggles are pushed in toward the sides of the conbe shifted outward to are slotted to allow the shaft to shift freely.

Fig. 11 shows how the gap between the end The sides of the conveyer of the 'conveye -bottom 16 and the shaft 17 is kept covered. This is done by bending one end of a piece of sheet rnetal'32 aroundthe said shaft in' a loose manner, as shown, while the straight portion thereof covers the gap the said bottom. The chains L L will pass freely over this, and the gap is always covered in any adjustment of the parts.

The sprin 28 of the plunger 27 is of great strength an is employed to keep a yielding tension on the chains when in operation, so that-any undue strain on the chains, due to any cause, will not bind the machine or break an of the parts.

he purpose of slacking the chains is that the head of the elevator ma be folded back when storing or shipping t e machine and also that the conveyer may be raised to the dotted-line position shown in Fig. 3. Much slack is needed for these purposes, seen, and it may be had by the means emp y In 0 eration it may be found expedient to raise t e conveyer to let awagon pass and ICC as will be then let itdown behind the wagon ready to receive the load of grain therefrom. In or der to do this, it is only necessary to pull the toggles outward, as hereinbefore described, to

slacken the chains, raise the conveyor, and

afterward let it down and replace the tog- It is to be noted that the arms 13 are quite long, so that in raising the conveyer they will pass the ends of the elevator. The sides of the former are out out, as in Fig. 3, so that the housings 21 of the sprockets 19 will not be interfered with in raising on the arms 13.

The conveyor is preferably made of sheet metal, so as to have the sides sufficiently thin to pass between the chains and the sides of the elevator, as will be understood.

. Various changes may be made in vice such as will improve the general conmy destruction and 'arrangement without departing from the spirit and intent of the invention, as I do not wish to confine myself to the the wing-nut and its bolt within the slot for work at a 36 of the frame, there being sufficient play in the parts to permit the said members 34 se arating or coming toward one another as t ey follow theslots. By the means thus provided it will be seen that the arms 3 can be adjusted for a fixed height'of the elevator and that when they are raised the said elevator will always be in the desired position particular receptacle. I claim- 1. In a device of the character described, an elevator, wheels therein at the top and bottom, an endless conveyer member carried by the wheels, means outside the elevator and in connection with both the wheels top and I bottom of said elevator and driving connection at the lower end of such means for driving it to impart movement tothe endless conveyer member from the top of the said elevator. 2. In a device of the class described, an

elevator, an endless conveyer member-thereing, wheels for carr g and guiding said .con-

veyer member, a s aft carried at the side of the elevator, a gear-wheel at itsup er end for connection with the carrying-w eels of the conveyer member, and .a power-driven wheel at the lower end of the elevator for driving the lower end of the shaft all for the substantially purposes described. 1

1 3. In a device of the class described, a pivoted tiltable elevator, an endless conveyer member therefor, carrying-wheels at the top and bottom of such elevator, .a gear-wheel for driving the upper ones, a power-driven shaft journaled on the side of the elevator arallel therewith and substantially para lel with theto and-bottom edges thereof and moving with the elevator when raised or lowered, 'a gear-wheel at the u per end of the shaft forengaging the gearw eel of the conveyer member, a powerdriven gear at the foot of the elevator and a gear-wheel on the lower end of the. shaft for enga g the power-wheel of the elevator, the 'ving power bein transferred to the wheels at the top of t e "elevator through said shaft. r

4. In adevice of the class described, an elevator, a conveyer pivoted thereto and adapted to discharge grain thereinto, an endless conveyer member within the elevator and conveyer, carrying-wheels in. the elevator elevator consisting of hinged foldable sections, an endless conveyer member therein, wheels for the same, driving means outside the elevator at the side thereof in connection with the upper carrying-wheels of the conveyer member, and ower on the'lower end of the conveyer with which the driving means is connected, said driving means adapted for permitting the elevator to fold but capable of driving the conveyer member when the elevator is again openedto its normal working position.

' 6; In a device of the character described, an elevator of plural sections hinged together and foldable upon one another, a conveyer, member therein, wheels for the same, a shaft-section journaled on the outside of and parallel with each of the elevator-sections, the same adapted to interlock when the elevator-sections are operatively connected, the upper shaft-section adapted for driving the top wheels of the conve er member, and power means for driving t e lower shaft-section.

7 The combination,in a portable elevator, of a wheeled support, an elevator pivoted thereto and adapted to raise and lower, means for raising. and lowering it, a conveyer-section having pivotal connection with the elevator at the lower end of the latter, said conveyer adapted to tilt on end into the elevator, the

latter member having a foldin head substantiallyas shown, wheels in the. ead of the elevator, companion wheels in the outer free end of the conveyer, elevating means carried by both series of wheels, the same adapted to run through the elevator and conveyer, a shaft. carried at the side of the elevator, means for imparting motion thereto, said shaft ending at the 'oint of the elevator and its head, a second s orter shaft on the head of the elevator, connections between the two shafts, and means at the free end of the shorter shaft for driving the Wheels within the elevator-head for imparting motion to the said elevating means substantially as set forthl 8. An elevator, an endless conveyer member and its carrying-wheels therein, a shaft journaled on the side of the elevator and having driving connection with the upper wheels of the conveyer member, a power-wheel carried at the foot of the elevator, the said shaft having connection therewith for driving the said upper'wheels of the elevator, the elehaving a foldable section hin ed to the 'ele-.

tion w on in operative position.

9. An elevator-having a conveyer member and carrying-wheels therefor, said elevator vator on the upper side, as s own, the elevator and its section separating at the under side when the latter is turne back on its hinge, a shaft carried on the side of the elevator and comprising two sections jointed'at the point of separation of the elevator and its section and capable of drivin connection and disconnection at will when t e upper elevator-section is swung, to its closed. or 0 en position respectively, and a power-whee at the foot of the elevator having connection with the lower end of the shaft substantially as and for the pur oses described.

10. In adeviceo the class described, grainelevating means, an endless conveyermember therein, wheels for carrying the latter and means for slackening the said conveyer member comprising slidable members carrying a set of wheels at one end of the conveyer mem ber, toggle-arms pivoted to each of the slidable blocks and yielding means with which said arms are connected for the purposes described.

11. In a device of the class described, an elevator, a conveyer therefor in line therewith, a single endless conveyer member extending through both members, wheels for the latter at the head of the elevator and at the outer extremity of the conveyer, a slidable block at each side of the conveyer'for carryin and adjusting the wheels therein situate a toggle-arm pivoted to each slid able block, a second toggle-arm pivoted to L the free end of the first, and a s ring-held plunger to which the free end of t e second arm is pivoted, the-said arms, when adjusted in line with one another holding the wheels out to their limit of'movem'ent to tighten the 4 5 chains, springs for keeping a yieldin tension on the c ain when the arms are in e, the arms when thrown out of line permitting the chains to slacken as set forth.

12. In a portable elevator, a wheeled frame, an elevator ivote'd at one end thereon, a derrick ivote on the frame, devices carried on the eri'ick for attachment with andraising and lowering the elevator, and jointed bracearms for supporting said derrick, said arms being pivote at one end on the frame and attached to the derrick at the other and adapted to colla se at the joints thereof for the purposes escribed, said arm bein adapted to support the elevator when raise and straightened as shown.

13. In a portable elevator, a wheeled frame, an elevator pivoted on said frame, devices thereon for connecting with and raising and lowering the elevator and arms pivoted at their lower ends to the frame and having connection with the derrick at the other, and a hinged joint for each arm, the ivot of each joint lying outside of the line 0 thrust of the wei ht on the arms when the said arms are in t eirposition for supporting the elevator.

14. In a portable elevator, a wheeled frame, an elevator pivoted thereon, a conveyer pivoted at one end to and within the elevator- JOSEPH, E. CAMP.

Witnesses E. J. ABERSOL, L. M.' THURLow. 

